Anthony grew up in Hamden, Connecticut. There, he played in a ska band named JC Superska. After dropping out of university in his first year he relocated to Boston where The Damn Personals were born. Shortly after, The Damn Personals became a mainstay at popular Boston, Providence, and New York indie venues. They released their first album, Driver/Driver, with producer Darron Burke. Their second release, Standing Still in the USA, was produced by Michael Demming. Living hand to mouth, the band toured the US nearly ten times. They shared the stage with the likes of The Walkmen, The Hives, The Strokes, Jimmy Eat World, Piebald, The Brian Jonestown Massacre, the Explosion, Hot Snakes, Dismemberment Plan, Bratmobile and the Make-up. They also toured Europe and UK once with Cave In. In 2003, introduced by Isaac Green of Columbia records, Rossomando met Carl Barât in NYC and agreed to fill in for Doherty in an upcoming US tour for The Libertines; this was followed by a trip to London to play Top of the Pops and Reading and Leeds festival. Eight months later he rejoined The Libertines to help support the entire worldwide touring campaign for their self-titled second album. It was during this time when Rossomando and Barat began to formulate their ideas that would later embody Dirty Pretty Things. During this time, Rossomando moved from a derelict house in Boston to Central London. In May 2006, Dirty Pretty Things released Waterloo To Anywhere which reached No. 3 in the UK charts, while the first single "Bang Bang You're Dead", peaked at No. 4. The band toured extensively in the UK, US, Europe and Japan. Anthony also played trumpet on: • Chisel - "Set You Free" • Piebald - "We Are The Only Friends We Have" • The Cribs - "The New Fellas" "Rime Of the Modern Mariner", Anthonys first film score, premiered at the East London Film Festival in May 2011 with live orchestral arrangement which also went to several festivals including Latitude, SXSW, and Toronto. The film and score received high praise from many publications including the Times and the Guardian. In November 2007, he played the role of Pete Neon in the first episode of the third series of The Mighty Boosh. He was also featured in the documentary The Mighty Boosh: A Journey Through Time and Space'', which aired on BBC Three on March 22, 2008. In 2018, Anthony co-wrote the song "Shallow" with Lady Gaga, Mark Ronson, and Andrew Wyatt. It was produced by Gaga with Benjamin Rice. "Shallow" is a song for the 2018 film A Star Is Born, performed by Lady Gaga and Bradley Cooper. It is the first single from the film's soundtrack and was released on September 27, 2018, by Interscope Records. "Shallow" was nominated and won the category of Best Original Song – Feature Film, at the 2018 Hollywood Music in Media Awards. It also received a nomination in the category of Best Original Song at the 23rd Satellite Awards, and from the Los Angeles Online Film Critics Society. It won the award for Best Original Song at the 76th Golden Globe Awards and the Academy Award for Best Original Song at the 91st Academy Awards in 2019. Anthony has been a longtime supporter of the Love Music Hate Racism Campaign, appearing at numerous gigs, shows and festivals for them. DPT were also supportive of the Make Roads Safe Campaign, and in November 2006, Anthony appeared on Sky News to promote the cause.